Avaliação de atributos químicos do solo em agroecossistemas sob diferentes manejo do solo

EVALUATION OF CHEMICAL ATTRIBUTES OF SOIL IN AGROECOSYSTEMS UNDER DIFFERENT SOIL MANAGEMENT

Abstract

The objective of this work was to evaluate the chemical attributes of the soil under cultivation systems in different stages of conversion to organic. For this purpose, three properties with different conversion times (<1 year, between 1-5 years and> 10 years) were selected in the municipalities of Sitio do Mato, Serra do Ramalho and Bom Jesus da Lapa, Bahia. The deformed soil samples were carried out in vegetable growing areas in the 0-20 cm layer. For comparative purposes, soil samples were collected in a forest area under natural regeneration process. Data were submitted to ANOVA, multiple mean comparison test and multivariate analysis. With the exception of soil pH, there was variation in the concentrations of the attributes analyzed when comparing the different management models and conversion time. The longer the time in organic-based cultivation, the higher the concentrations of organic matter, phosphorus, potassium, magnesium, sodium, base sum and cation exchange capacity

Keywords: sustainability; organic production; soil quality